Found Out

I found out that my wife sucked off a guy she had dated during high school when she was visiting for her tenth reunion (four years ago). She doesn't know I found out. I overheard a conversation she had with a girlfriend while they were both drunk. It was clear the friend has known all along and the gist was that the girlfriend was pressing my wife wondering if she plans to actualy fuck the guy again the next time which is comin up. My wife basically said she might not go far enough to fuck him but would suck him off again if he asked. Her friend told her she should fuck him to get it out of her system, what I don't know won't hurt me basically. But now I do know. For awhile, I've thought it would be exciting to see my wife have sex with another guy or to swing or whatever but not like this. This isn't exciting at all. This just sucks. And her friend is an asshole.